Improvement in excavating-scoops



Y o. P. KNIPFIN.

EXGAVATING SCOOP.

Patented Nov. 8, 1 870 ttt-int j aia that afm;

OSCAR P. KNIFFIN, OF CLINTON, CONNECTICUT, ASSIGNOR TO HIMSELF AND H. A.LYNE, OF SAMEl PLACE.

Letters Patent No. 109,132, dated Novenber 8, 1870.

IM PROVEM ENT IN EXCAVATlNG-SCOOPS.

The Schedule 'referred to in these Letters Patent and making pax-t ofthe same.

Tp all whom it may conce/rn:

Be it known that I, OSGARP. KN-IFFIN, of Clinton, iu the county ofMiddlesex and State of' Connecticut, have invented a new Inipii'ment inExcavating- Scoop; and I do hereby declare the following, when taken inconnection with the accompanying drawing and the letters of referencemarked thereon, to be a full, clear, and exact description of the same,and which said drawing constitutes part of this specieation, andrepresents in l i Figure 1, a side View, with the operation vdenoted inbroken lines; and in Figure 2, the handle, (letached.

This invention relates to an improvement in scoops designed forexcavating orcleaning out wells, which are formed by 'sections of tubesset into the earth, by removing the earth from below. v

.Heretofore, this class of wells have been made of suicient diameter toallow a man to work within the tubing, but as a much less diameter wouldanswer all practical purposes, the object of my invention is to producean instrument by which the earth may be removedwithont theA necessity ofa person going into the welll My invention consists of a. shank orhandle with a scoop pivoted thereto, the saidhandle 'constructed with abearing, to hold the scoop in a vertical position, yet allow the scoop.to be turned for the purpose of elevating the mouth ort' the scoop whenthe handle is in a vertical position..I

A is the scoop, of any suitable metal and shape, by preference wood, andthe edge of the mouth-at one point, B, longer than at the'other points.

C isa socket or shank, to which the handle is fixed,

or made a partof, and to the lower end at a the scoop is pivoted, astud, D, being formed on the head of the scoop for that purpose.

The shank extends below the pivot, so as to form an arm, (l, againstwhich the stud D bca-rs, to prevent the scoop from turning back, andthis arm is upon the longest side of the scoop, the pivot belngatrigh-tangles to the said longest side.

E is a bail pivoted to the scoop near its mouth, to which a line, F, isfixed, extending up to the operator.

To use the scoop, the operator presses it into the earth in the positiondenoted in ig.- 1, andwhen pressed down so hardV as to be lled withearth, or as full as may be, the operator draws the line F and works'thescoop 4unt-i1 it is turned into theposition denoted in, broken linesthen drawing the line and handie together, the scoop, with the contents,is raised to the surface ot' the earth, emptied, and may be againreturned,y dropping, by its own gravity, against the arm d into positionfor a second charging, and so on.

This instrument is found very u seful in cleaning out wells, as it maybe passed down through the water and gather up the mnd or sediment inthe well, work which now requires aperson to descend for that purpose.

The scoop A, combined with the shank (i and pivoted thereto, the'saidshank constructed with an arm, d, bearing upon the scoop below thepivot, in the manner and for the purpose substantially a-s described.

OSCAR P. KNIFFIN.-

Witnesses: GEO. E. ELLIOT,

.. Q. 0, WATRoUs.

